3-(Bromomethyl)-2-(difluoromethyl)-6-methoxypyridine-5-acetic acid
3-(Bromomethyl)-2-(difluoromethyl)-4-methoxypyridine-6-acetic acid
6-(Bromomethyl)-2-(difluoromethyl)-3-methoxypyridine-4-acetic acid
6-(Bromomethyl)-2-(difluoromethyl)-4-methoxypyridine-3-acetic acid